Linichnus Jacobsen et Bromley, 2009

Predation; substrate osteic; tracemaker vertebrate

Diagnosis: Single elongated groove of biogenic origin on skeletal material (e.g., bones, teeth). The groove, U-or V-shaped in transverse section, may only affect the surface of the bone, or bone-fibres may be cut through, recurved or brocen within the groove. The groove has serrated morphology.